Data Storage (NYSE: DTST) delays 2025 10-K after cloud unit sale

Rhea-AI Filing Summary

Data Storage Corporation notified the SEC that it cannot timely file its Annual Report on Form 10-K for the year ended December 31, 2025. The delay is due to additional time needed to finalize financial statements after the September 11, 2025 sale of substantially all assets of the company’s cloud solutions business. The cloud solutions business will be reported as discontinued operations, and continuing operations will reflect the results of subsidiary Nexxis, Inc. The company expects higher sales, cost of sales, SG&A and an increase in net income tied to the sale; the financial statements are not yet finalized and quantitative amounts are not provided.

Key Figures

Form type: Form 12b-25 (NT 10-K) Fiscal year end: December 31, 2025 Sale date: September 11, 2025 +2 more

5 metrics

Form type Form 12b-25 (NT 10-K) Notification of late filing for the 2025 Form 10-K

Fiscal year end December 31, 2025 Period covered by the delayed Form 10-K

Sale date September 11, 2025 Sale of substantially all assets of the cloud solutions business

Required filing date March 31, 2026 Prescribed Form 10-K filing deadline referenced in the notice

SEC File / CUSIP SEC File 001-35384; CUSIP 23786R201 Identifiers shown on the Form 12b-25 cover data

Key Terms

Form 12b-25, discontinued operations, continuing operations, Nexxis, Inc.

4 terms

Form 12b-25 regulatory

"FORM 12B-25 NOTIFICATION OF LATE FILING"

Form 12b-25 is a notice a publicly traded company files with the U.S. Securities and Exchange Commission when it cannot deliver a required periodic report (like a quarterly or annual financial report) on time. It explains the reason for the delay and gives the company a short, temporary window to finish the report without being marked as delinquent; investors watch it because late filings can signal accounting, operational, or control issues that may affect a company’s reliability and stock risk, much like a missed homework deadline can raise concerns about a student’s preparedness.

discontinued operations financial

"will reflect operations of the Company’s cloud solutions business as discontinued operations"

Discontinued operations are parts of a company that it has decided to sell or shut down, and no longer plans to run in the future. This matters to investors because it helps them understand which parts of the business are ongoing and which are being phased out, providing a clearer picture of the company’s current performance and future prospects. Think of it like a store closing a department—it no longer contributes to sales or profits.

continuing operations financial

"results of continuing operations ... based solely on the operations of the Company’s subsidiary, Nexxis, Inc."

Continuing operations are the parts of a company's business that it expects to keep running into the future, excluding divisions or activities it has sold, closed, or classified as discontinued. Investors watch continuing operations because they show the company’s core ability to generate revenue and profit over time — like evaluating the healthy, ongoing crops on a farm rather than one-off harvests from fields you've already sold.

Nexxis, Inc. other

"the Company’s subsidiary, Nexxis, Inc. (“Nexxis”)"

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 12B-25

NOTIFICATION OF LATE FILING

SEC FILE NUMBER
001-35384

CUSIP NUMBER
23786R201

(Check One): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K

                         ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR

For Period Ended: December 31, 2025

☐ Transition Report on Form 10-K

☐ Transition Report on Form 20-F

☐ Transition Report on Form 11-K

☐ Transition Report on Form 10-Q

For the Transition Period Ended: N/A

Read Instruction (on back page) Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: N/A

PART I. REGISTRANT INFORMATION.

Data Storage Corporation

Full Name of Registrant

Former Name if Applicable

244 5^th Avenue, 2^nd Floor, Suite 2821

Address of Principal Executive Office (Street and Number)

New York, New York 10001

City, State and Zip Code

PART II. RULES 12B-25 (b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate.)

    ☒ (a) The reasons described in reasonable detail in Part III of this Form could not be eliminated without unreasonable effort or expense;   (b) The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and   (c) The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III. NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-CEN, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

Data Storage Corporation (the “Company”) is unable to complete the filing of its Annual Report on Form 10-K for the year ended December 31, 2025 (the “Form 10-K”) by March 31, 2026 due to a delay in obtaining and compiling information required to be included in the Form 10-K, which delay could not be eliminated by the Company without unreasonable effort or expense. The Company requires additional time to finalize its financial statements for such period.

PART IV. OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification:

Charles M. Piluso (212) 564-4922

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the Company was required to file such report(s) been filed? If the answer is no, identify report(s).

☒ Yes ☐ No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings to be included in the subject report or portion thereof?

☒ Yes ☐ No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

The Company expects a significant change in its results of operations for the fiscal year ended December 31, 2025 compared to the fiscal year ended December 31, 2024, due to the sale of substantially all of the assets associated with the Company’s cloud solutions business, which was sold on September 11, 2025. Subsequent to the sale, the Company’s results of operations will be based solely on the operations of the Company’s subsidiary, Nexxis, Inc. (“Nexxis”). The financial statements for the years ended December 31, 2025 and 2024 that will be included with the Form 10-K will reflect operations of the Company’s cloud solutions business as discontinued operations. The Company is unable to definitively quantify the anticipated changes at this time because the financial statements are not yet finalized. In its results of continuing operations, the Company anticipates reporting an increase in sales, cost of sales and selling, general and administrative expenses, driven primarily by the continued growth in Nexxis’ voice and data solutions business, driven by the addition of new customers and increased spending from existing customers. Additionally, the Company anticipates reporting an increase in net income, primarily attributable to the sale of the Company’s cloud solutions business.

Data Storage Corporation has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized.

	DATA STORAGE CORPORATION
Dated: April 1, 2026	By:	/s/ Charles M. Piluso
		Charles M. Piluso
		Chief Executive Officer

FAQ

Why did Data Storage (DTST) file a Form 12b-25?

The company filed because it needs more time to finalize its 2025 Form 10-K financial statements. The delay follows the September 11, 2025 sale of its cloud solutions business and related reclassification work for discontinued operations.

How does the cloud solutions sale affect DTST’s 2025 results?

The sold cloud solutions business will be reported as discontinued operations in the 2025 financials. Continuing operations will reflect only Nexxis, Inc.’s voice and data solutions performance after the September 11, 2025 sale.

When was the cloud solutions business sold according to the filing?

The filing states the cloud solutions business was sold on September 11, 2025. The company says subsequent results will be based solely on Nexxis, Inc.’s operations following that sale.

Did Data Storage give expected numeric changes for 2025?

No numeric estimates were provided; the company expects increases in sales, cost of sales, SG&A and net income but says financial statements are not finalized. Quantitative amounts are not included in the notice.